Carl Zeiss Biogon T 28mm f/2.8

Carl Zeiss Biogon T 28mm f/2.8 is a manual focus wide angle lens for 35mm rangefinder cameras.

Optical design

Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value

Physical characteristics

Weights 150 grams so convinient to carry. With a lens filter diameter of 46 mm you are one step from the next standard filter size, buy step-up ring and bigger filter but you can chose from plenty options. 31 mm long, this small lens should be always in the camera bag.